Abstract:
The invention relates to a wind turbine comprising rotating means including at least two wind turbine blades (4) which are turnable around the longitudinal axis of said blades, and a wind turbine hub connecting said at least two wind turbine blades (4) with at least one shaft (7, 16). Further, the wind turbine comprises hydraulic means (17) for actuating said at least two wind turbine blades (4), said hydraulic means (17) being incorporated in said rotating means. The invention also relates to a hydraulic system, an air bleed system and a method of controlling at least two wind turbine blades.
Abstract:
A wind turbine with a rotor, a nacelle and a tower. The nacelle comprises a planetary gear (4) with a planetary holder (5), on which the hub (6) of the rotor is rigidly secured, and which can be connected to the shaft of an electrice generator. The planetary gear (4) comprises a ring gear (7) fixedly mounted on an engine frame (9) in the nacelle or on the member (8) rigidly connected to said frame. The planetary wheels (17a, 17b) of the planetary gear can run around a centrally arranged sun wheel (14) while engaging the latter. The sun wheel is optionally connected to a parallel gear (30). The planetary holder (5) is rotatably mounted in the ring gear (7) by means of at least two sets (17) of planetary twin wheels (17a, 17b). Each set of planetary twin wheels is mounted on a bogie shaft (19) on the planetary holder. Through an axially rearward collar (23) projected beyond the ring gear, the planetary holder (5) is also rotatably arranged on the curved outer side (7b) of the ring gear (7) by means of an outer radial-axial-roller bearing (27).
Abstract:
Human spasmolytic polypeptide (HSP) which has the amino acid sequence (I) or a functionally equivalent homologue thereof, characterized by being in glycosylated form.
Abstract:
There is provided a method for manufacturing a thermoelectric zinc antimonide thin film wherein zinc and antimony are deposited on a hot substrate and wherein the deposited zinc and antimony form a layer of zinc antimonide. The substrate has a temperature of at least 100 degrees Celsius during deposition. The invention furthermore relates to fabrication of phase pure Zn4Sb3 thermoelectric thin films and phase pure thermoelectric ZnSb thin films, and furthermore to a zinc antimonide thin film comprising a mixture of the phases, such as ZnSb and Zn4Sb3, and still further relates to two completely new and hitherto unknown phases of zinc antimonide.
Abstract:
La presente invención proporciona un método de instalación de un aerogenerador (1) sin la necesidad de utilizar grandes grúas, utilizando un soporte (8) con cuatro patas (9) en cuya parte superior se sitúa un elemento de unión (10) a la torre (5), un conjunto de poleas y dos uniones pivotantes. El montaje del aerogenerador (1) se realiza en el suelo, y luego por medio de un cabestrante que tira de un cable (11) conectado a unos medios de fijación (6) en la torre (5) y que pasa por el conjunto de poleas del soporte (8), se eleva el aerogenerador (1) hasta conectar la torre (5) a las uniones pivotantes del soporte (8). Posteriormente, por medio de otro cable y un cabestrante situado en la cimentación (7) de la torre (5), se voltea el aerogenerador (1) hasta conectar por un lado la base de la torre (5) con la cimentación (7) y por otro, el aerogenerador (1) con el soporte (8).
Abstract:
The invention relates to a nacelle (20) comprising releasable attachment means (71, 72, 27) said attachment means (71, 72, 27) being adapted for suspension of said nacelle (20) between at least two wheel sets (21, 22) as completely or partly self-supporting suspension.
Abstract:
The centrifuge has an electric motor (18) of the squirrel cage type for the rotation of the centrifuge drum (2) during centrifugation and an electric control (20) comprising a frequency converter (21) for the control of the RPM of the electric motor (18). When cleaning the drum (2) a frequency converter (21) is coupled into the normal current supply line (25) to the electric motor (18) by means of two change-over switches (22, 23). The nominal power of the frequency converter corresponds to the power consumption of the electric motor (18) when the centrifuge drum (2) rotates at a speed corresponding to the centrifugal force at the internal side of the drum (2) being 1.2 to 0.8 times the gravitational force.
Abstract:
A bed plate (13) for a fluidized bed apparatus is made from a plate (23) from sheet metal and comprises openings (22) for fluidizing air or gas of the so-called 'gill type'. In order to reduce or prevent fall-through of product, at least one of the edge portions (24, 34) defining the opening (22) has been deformed so as to increase the extension thereof along the plane of the bed plate, and so as to thereby reduce or eliminate the orthographic projection on said plane of the opening (22). Such deformation may comprise compression and/or stretching. The edge portion or portions (24, 34) are preferably deformed to such an extent that a partial overlap is obtained.
Abstract:
Tren de potencia mejorado de un aerogenerador incluyendo un generador de imanes permanentes (41 ) situado delante del rotor eólico (15) que está accionado directamente por el rotor eólico (15) y una cubierta frontal (59) cubriendo el frente abierto del generador (49), comprendiendo el rotor eólico (15) un buje de rotor (17) y al menos una pala y estando soportado por un eje hueco no rotatorio (29) unido a la estructura de soporte (13) por medio de al menos un cojinete frontal (21 ) cercano al generador (41 ), comprendiendo el rotor del generador (45) una carcasa de rotor (51 ) y una placa trasera de rotor (53), estando situado exteriormente al estator (43) y estando unido rígidamente al frente del buje del rotor (25), comprendiendo el estator del generador (43) una carcasa de estator (55) y una placa trasera de estator (57) que está unida rígidamente al eje principal (29).
Abstract:
Un método de erección de un aerogenerador que comprende los siguientes pasos: Proporcionar el buje del rotor (9), las palas (11 ), Ia góndola (13) y una torre de celosía (15) que comprende dos secciones (21, 27) conectadas pivotablemente a lo largo de un eje (17) a una altura H, estando compuesta su parte inferior, por debajo de H, por la segunda sección (27), que incluye las patas (31, 33), y una primera parte (23) de la primera sección (21 ) y estando compuesta su parte superior, por encima de H, por una segunda parte (25) de la primera sección (21). Ensamblar en el suelo el aerogenerador con la góndola (13) dispuesta sobre un vehículo portador (19). Levantar la segunda sección (27) y fijar las patas superiores (33) a unas segundas zonas de cimentación (43). Levantar la primera sección (21) y fijar su primera parte (23) a la segunda sección (27).